フォントのアウトラインを設定

OutlineText.cs

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

[ExecuteInEditMode]
[RequireComponent(typeof(TextMesh))]
public class OutlineText : MonoBehaviour {

	public Color outlineColor = Color.black;
	[Range(0.05f, 0.3f)] public float size = 0.1f;

	protected TextMesh[] textMeshes;
	protected TextMesh baseTextMesh;

	protected static Vector3[] fontPositions =
	{
		new Vector3(-1, 0, 0),
		new Vector3( 1, 0, 0),
		new Vector3( 0, 1, 0),
		new Vector3( 0,-1, 0),
		new Vector3(-0.75f, -0.75f, 0),
		new Vector3( 0.75f, -0.75f, 0),
		new Vector3( 0.75f,  0.75f, 0),
		new Vector3(-0.75f,  0.75f, 0),
	};

	void Start () 
	{
		baseTextMesh = GetComponent<TextMesh>();
		baseTextMesh.renderer.sortingOrder = 1;

		textMeshes = transform.GetComponentsInChildren<TextMesh>();

		List<TextMesh> textMeshLit = new List<TextMesh>();
		for(int i=0; i< transform.childCount && i < fontPositions.Length; i++)
		{
			var textMesh = transform.GetChild(i).GetComponent<TextMesh>();
			if( textMesh != null){ textMeshLit.Add(textMesh); }
		}
		textMeshes = textMeshLit.ToArray();


		if( textMeshes.Length == 0 )
		{
			textMeshes = GenerateTextMeshes(baseTextMesh);
		}
	}
	
	void LateUpdate () 
	{
		for( int i=0; i< fontPositions.Length; i++)
		{
			var textMesh = textMeshes[i];
			textMesh.GetComponent<MeshRenderer>().sortingOrder = 0;
			UpdateFont(baseTextMesh, textMesh);
			textMesh.color = outlineColor;
			textMesh.transform.localPosition = fontPositions[i] * size;
		}
	}

	[ContextMenu("Destroy")]
	void Ondestroy()
	{
		for(int i=0; i< textMeshes.Length; i++)
		{
				DestroyImmediate( textMeshes[i].gameObject );
		}
	}

	protected static TextMesh[] GenerateTextMeshes(TextMesh baseTextMesh)
	{

		List<TextMesh> textMeshList = new List<TextMesh>();

		for(int i=0; i< fontPositions.Length; i++)
		{
			var newFont = new GameObject(baseTextMesh.name + " copy font");
			newFont.hideFlags = HideFlags.HideInHierarchy;
			newFont.transform.parent = baseTextMesh.transform;
			newFont.transform.localScale = new Vector3(1,1,1);

			var meshRenderer = newFont.AddComponent<MeshRenderer>();
			meshRenderer.castShadows = false;
			meshRenderer.receiveShadows = false;

			var textMesh = newFont.AddComponent<TextMesh>();
			textMesh.renderer.material = baseTextMesh.renderer.sharedMaterial;
			textMesh.font = baseTextMesh.font;

			textMeshList.Add(textMesh);
		}

		return textMeshList.ToArray();
	}

	protected static void UpdateFont(TextMesh baseTextMesh, TextMesh newTextMesh)
	{
		newTextMesh.font = baseTextMesh.font;
		newTextMesh.text = baseTextMesh.text;
		newTextMesh.text = baseTextMesh.text;
		newTextMesh.alignment = baseTextMesh.alignment;
		newTextMesh.anchor = baseTextMesh.anchor;
		newTextMesh.characterSize = baseTextMesh.characterSize;
		newTextMesh.font = baseTextMesh.font;
		newTextMesh.fontSize = baseTextMesh.fontSize;
		newTextMesh.fontStyle = baseTextMesh.fontStyle;
		newTextMesh.richText = baseTextMesh.richText;
		newTextMesh.tabSize = baseTextMesh.tabSize;
		newTextMesh.lineSpacing = baseTextMesh.lineSpacing;
		newTextMesh.offsetZ = baseTextMesh.offsetZ;
	}
}